_______ are sought by an elementary school. A. Mentally retarded teachers B. Teachers retarded for mental cases C. Teachers for the mentally retarded D. Mental retarded case teachersĐoạn văn18/62_______ are sought by an elementary school.Mentally retarded teachersTeachers retarded for mental casesTeachers for the mentally retardedMental retarded case teachersGiải thíchChọn C